Elastic woven fabric and method of weaving it.



July 1, 1925.- v

A. LAURAIN ELASTIC WOVEN FABRIC AND METHOD OF WE'AVING IT Filed Aue:.19. 1921 Patented July 7, 1925.

UNITED STATES PATENT QFFIC-E.

ALFRED LAURAIN, F PARIS, FRANCE, AssIGNoR r0 SOCIETE' nu CAOUTCHOUCMANU- FACTURE, 0F PAR-IS, FRANCE.

ELASTIC WOVEN FABRIC AND METHOD OF WEAVING- IT.

Application filed August 19, 1921. Serial No. 493,649.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L,1313.)

To all whom it may concern:

Be it known that I, ALFRED LAURAIN, a.

citizen of the'French Republic, residing at 86 A to 90 RueNotre Dame deNazareth, city of Paris, France, have invented new and usefulImprovements in Elastic Woven Fabrics and Methods of WVeaving Them (forwhich I filed an application in France, dated Sep-- tember 8, 1913,Patent No. 473,146, and in Great Britain, dated July 5, 1920, Patent No.146,468), of which the following is a specification.

This invention has reference to improvements in elastic woven fabrics,ribbons or bands and in the methods used for weaving them.

The main object of this invention is to produce an elastic fabric,ribbon or band which is more pliant and moresupple and possess otherimportant advantages as compared with such fabrics as heretofore made.

An important use to which this improved fabric, ribbon or band may beput is to be made up into braces, garters, hose sup- 25 porters, bodybelts and similar articles in which event this invention will obviateserious defects inherent in such articles when made from fabric asheretofore woven in that the latter exert a pressure on the wholesurface over which they are stretched and further there is very littleor no ventilation of that part of the body on which the article is beingworn. This invention consists in an elastic fabric, ribbon or band thatis formed with trans verse parallel ribs or ridges which project on'bothsides of the fabric, ribbon or band, the said ribs or ridges beingarranged in series spaced apart so as to leave short lengths of fabricbetween them, which latter may be plain ribbed or brocaded. The seriesof ribs or ridges may be spaced apart at regular or irregular intervals.

. The parallel transverse ribs referred to which stand out in relief onthe two faces of the plain ribbed or brocaded fabric, ribbon or bandform transverse channels betwen them for the circulation of air and theyalone formthe contacting surfaces with the body.

Such a band of more or less elastic fabric is rendered very pliable orsupple longitudinally by reason of the ribs or ridges and in a measureforms a pliant ventilated cushion which will not irritate the skin andhas, therefore, a great advantage from the hygienic point of view.

The accompanying drawing represents the ordinary appearance of the extrasupple new textile and the designing, enabling any specialist to mountand manufacture a type of this textile article.

Fig. 1 represents a plan view and the corresponding edge View of a pieceof ribbon of this new tissue; a indicates the part in plain ribbed orbrocaded elastic tissue and b the extra supple part with transverse ribsor ridges c which project on both sides. The parts a and b may be ofvariable lengths.

Fig. 2 is a plan view of the threading; 1 is the elastic rubber thread;2, 3, 4, 5 are the ordinary non-elastic threads of the ground.

Figs. 3 and 4 represent a designing which comprises: a first piece, Fig.3, showing the production of the plain ribbed or brocaded part a in oneor several colours which may be in any required design and a secondpiece, Fig. 4, showing the production of the extra supple part bprovided on its two faces with rectilinear parallel transverse ribs orridges.

In Fig. 3, the designing of the first piece only represents four throwsor passages of the weft, that is to say, the round, but it is understoodthat these four throws can be repeated as often as required, accordingas more or less great length is to be given to the part a of the tissue.

In Fig. 4 the designing of the second piece comprises two parts A and Bwhich here each represent eight throws or passages of the weft; however,it must be clearly understood that each part may comprise a multiple offour when greater length is required in the part Z) of the extra suppleThe first piece Fig. 3, is made as foll0ws:-

At the first throw of weft, the Warp threads" corresponding with the'combe'r boards 3 and 4 lift, whilst 1, 2, 5 descend.

At the hd threw, th W t-p; hr e e corresponding with'the comber boards1, 3, 5 lift whilst 2 and 4 descend,

At the third, boards 2 and5 lift and 1, 3 and 4 descend. I

Atthe fourth, boards 1 2, i lift and 3, 5 descend- V T e. fi h th ee? oWe s id ntic l wi h he. firs the sixth w t h se ond, and

S0 011. v a

parts A nd ef the eco ni ee, sthe pe ation i lQWe=- F e per A a t hefirst threw Qt Wef the Wa p threads corresponding with co n ber boards 3and 5 lift, Wh rees 2, des end-V At he. seeped hr i of Wef t e ere theads cler eepehd hg wit embe h a d- 3, 5i it-t Whereas 2-, eleee h h 'Athe th rd thr w, b ar s 2, t i nd 13, 5 desc ndr htv th f rt thr w, hee l2, 4 t and 3, 5 descend.

The fitth. hi'ew i ideh iee w th t r the six h t he seeped; th e nth wth the thir e dl' he. ei h h with th teer h- Th e ehr th ewe Qt et canhe Peeted; ese teh e c eqhir el-t 13 s p t. B; r r

A the ninth throw of weft which correepeh s to, he test h ew f ie e th wre th eed eertee eh ih t0 h e ed 5 li t Whe -eel the were thr ad eerrspeeeies te ewe 1 2, 34: i e

A the teeth l.;1.- .w lift whereas 3 descends.

t eventh W, hear 4 litte e -Id e e 5 At the r ltth. th ew; h e e t 1 5 hg irhe e 2 le e hele he fthi'rteenth' throw causes, the same n oyenientsas the-ninth, and so on, to the l le t ht Y Th e ei lhe hly' e u heiihrows o term a i h tee te s es epea d semen the required lighter oiribs. i

he seem lte ehlye tee hy he we e ro "theffoiegping; is to be under.-stood that thos'e of the warp threads: 'constituting, the transyerseribs, or ridges of the fabric do np't involve rubber threads. h l t l hbfi lg 2. 5 i the m d le Pe 9 th th ehh eef or th ab e- T eatr theserubber; threads/are not so liable to be attacked hy' 'aerspiratioi i; orfriction against the" hee y; l t y, ee l ee-" ey r suppprt'ed; somelittle distance above the ih e e Oh th ody mit e dly, h e ofth'eve1itilation" that can, take place; as described.

The warp and weft threads-other than the rubber threadsrnaybe of anysuitable textile thread, such as cotton, silk, artificial silk, ramieand the like. e

hat I a claim and desire to secure by Letters Patent is:-

7 1 An elastic fabric presenting longitudinally on both faces a sequenceof plain sections and of transversely ribbed sections, such plainsections being com osed of interwoven rubber warp threads, ihxtile warpthreads and textile weft threads and said transversely ribbed sectionsbeing cogiposed f e e ie Qt etel et rih'e twe d epert e regular intervas and protruding above and under the fabric with respect to said plainsections, each of Such ribs comprising textile warp-threads and textileweft threade, sei'd' hhhe w e th eede e n ied t" each rib neither withthe said textile w rp threads nor with tlie l ast named tel; il weftthreads.

2. An ela stlc fabric presenting longitudinally on both faces asequence? of plain sections and of transversely ribbed sections speedpar a regu ar nt r n ord r that the air 'inaypass between them so as toensure ventilation, such ribbed sections ei geempes t as ies of p allelit spacedapart and protruding abbve and, i111 der the fab ie withrespect to said plain sections, eac of such ribs comprising interwoventextile warp threads and eight shots of weft thread, he. forenamedrubber w rp thr ds e n h h n i w t th sa d exti we e hr a s he wi h heshgt L Qf rett 9 e o l ave the -b t arp. m

e h r h its ll e re t b h eed ext seilit he. et ecl of v evhxs ne e e edfiabri c cqnstituted by a sequence 0 sections and of transversely ribbedsections and 'm t e' p, i r bber w hre s, wtextile war threads andtextlle weft threads in the preport on f one ihbhe i Warpv tht' ee ee ttile. we e h eele s ee e e heihg paced ape zt zit r gul r interv ls forhe t m ny where t I her si n my name. o h s pec fication. ALFREDLAURAIN;

